code: def new_task_id():
      return "".join(
          random.choice(ascii_letters + digits) for _ in range(24)
      )
  
file_path: mars/mars/services/task/core.py
imports: import random
  from enum import Enum
  from string import ascii_letters, digits
  from typing import Any, Optional, Dict, List, Tuple
  from ...core import TileableGraph
  from ...typing import BandType
  from ...serialization.serializables import Int32Field, Serializable, FieldTypes, StringField, ReferenceField, BoolField, AnyField, DictField, ListField, Float64Field
label_desc: Use image node_id 1 for calling a global function with example usage: new_task_id() and returns: str